Feeder for elevators



Dec; 7 1926. 1,609,992

' J. C. DEVICK FEEDER FOR ELEVATORS Original Fil p 25, 1919 3 Sheets-Sheet 1 JizzJmZZjr; J. 0.176 y am? 1,609,992 J. c. DEVICK FEEDER FOR ELEVATORS Original Fil p 1919 3 Sheets-Sheet 2 Dec. 7,1926. 1,609,992

J.C.DEWCK FOR ELEVATCRS Original Filed p 1919 3 Sheets-Sheet 5 Patented Dec. 7, 1926.

UNITED STATES P c. nnvIcx; or. CHICAGO, ILLINOIS, ASSIGNOR, in MEsNE ASSIGNMENTS, T0

MACHINERY COMPANY, A CORPORATION or ILLINOIS.

JOSEPH r. c. AUSTIN,

. Application filed September 2 e 1,609, ATENT OFFICE.

i FEEDER FOR ELEVATORS.

This invention relates to machinery or apparatus for elevating materials from the street, as for example in the making of concrete or cementitious' mixtures.

rials, such as sand, crushed are dumped on the street, an the conveyer or elevator car The materock or gravel, d the buckets'of rythe same upwardly to a point where the materials are then discharged into the mixer.

hopper of the, The materials are fed to the lower.

end of the elevator invarious ways, sometimes by shovelling, and have also been proposedan automatically feeding lower end of the elevator.

therefore, or devices for feeding, the the ground or street to the l elevator, so that will be properly filled. I

Generally stated, the obje t-ion is to provide an various devices d employed for the materials to the This invention,

relates more particularly to means materials from ower end of the the buckets of the latter ct of the invenimproved construction and arrangement whereby a feeding device of this character will moreipositively and satisfactorily feed or sweep the materials from the ground into the buckets at the lower end of the elevator, s

0 that the feeding action will be practically continuous,

thus insuring a complete or proper filling 1o the buckets as they travel successively around the lower end of the elevator.

It is. also an object to provide certain details and featuresof construction and combinations tending to increase ficiency and the desirability the general efof a feeding decharacter;

To the foregoing and other useful ends the invention consists 1n matters hereinafter set forth and claimed and shown in the accompanying drawings, in which Fig. 1 is a side elevation a street machine having an elevator provided at its lower end with a feeder embodying the principles of the invention, the of said machine upper portions being shown broken away for convenience of illustration.

Flg. 2 1s an enlarged side elevation of the lower end of the elevat feeding mechanism are pushed the oncoming buckets.

Fig. 3 is a plan of the by which forward from the ground into showing the the materials feeding device shown in Fig. 1, showing the lower end portion of the elevator in position between the.

two feeders which operate 1 ntermittently to site sides of the elevator.

5, 1919, Serial Nb. 326,193. Renewed July 1c, 1926.

push the materials into position where they will be taken up by the buckets of the elevator. I e

Fig. 4 is a front elevation of the construction shown-in Fig. 2.

F ig; 5 is'a detail horizontal section on line 55 in Fig. 2.v

' As thus illustrated, the street machine is of a well known type comprising abody 1 so that the sprocket chains. or belts .7 and the buckets 8 are operated in the usual and well known manner, causing the buckets 3 which are upside down to travel downwarclly, and causing the buckets in the rear which are right side up to travel upwardly.

f It will be seen that the, buckets 8, while travelling around the lower end of the elevator,

pass or sweep close to the ground or surface of the street upon which the machine is standing. The construction of a machine of this general type is well known and well'understood, and does not require further description. 4 f r I The devices for feeding the materials to the-lower end ofthe elevator are as follows: Bracketsor castings 11 aresuitably secured to the lower end of'the elevator, at opposite sides of the bucket conveyer, and are adapted toprovide bearings for the vertically disposed shafts 12, one at each side of the machine, which are connected by bevel gearing 13 with thehorizontal shaft 14 upon which 199 are mounted the sprockets for the lower end of the elevator, whereby the shaft 1 3.- is

the bucket conveyer. In turn, therefore, the shafts 12 are rotated at the desired speed. Each shaft12 is provided at its lower end with a crank arm 15, and each casting 11 isformed with a guide 16, these two guidesjbeing parallel and extending longitudinally of the machine at oppov The shovel-like driven by CAD the materials into the and causes the tip or point 21 of each shovel- 7 like member to have an elliptical, or substantially elliptical, path of travel during its operation. Thus each shovel like memher is drawn backward toward the guide 16,

the roller. or other portion 20 keeping the face of the member toward the'ma-terials on the ground, and then the said member is moved outwardly a distance, and then the motion isreversed tobring the member backward toward themassof materials at the lower end of the elevator, the limit of movement of said member in this direction (toward the buckets) being indicated in dotted lines at 22 in Fig. 5, from which it will be seen that the two members 17 reach out and bury themselves in the materials and then move toward each other to carry or shove path of the oncoming buckets, The action, therefore, is somewhat like ordinary shovelling, except that the shovel-like members operate or move in a horizontal plane instead of moving up and down. The two shovel-like members are operated at a speed which will give thebest results, and as the elevator continues in operation the machine can be moved backward to push the lower end of the elevator and the two shovel-like members into the mass or heap of materials resting on the ground,

thereby keeping the feeding means constantly at work shovelling the materials into the path of the buckets at the lower end of the elevator. The operation of the shovel-like members is positive, as each member will push a quantity of the materials forward into the path of the buckets. When the two members move apart, as indicated in dotted lines at 22 in Fig. 3, the machine can then be shifted a little to bring the lower end of the elevator closer to the heap or mass of materials, and the two shovel-like members will then cooperate to push or sweep the materials directly into the path of the buckets. Always, though, as shown, the two shovel-like members 17 face each other, or face the heap or mass of materials, and have a to and fro or back 1 and forth movement toward and away from each other. Also, the arms '19 may be provided with depending flanges 23 to shovel the materials toward the buckets, and to serve as guards for preventing the materials from spreading laterally away from "the loading position of the buckets.

What I claim as my invention is:

1. Incombination with an elevator for conveying materials upwardly, a shovellike member for pushing the materials to the lower end of said elevator, mechanism for operating said member back and forth, and means for controlling said member, so that said member always faces the materials, said mechanism comprising a vertically disposed shaft having a crank thereon, which crank is pivotally connected to said shovel-like member, and said controlling means comprisinga guide and means connected with. said member to engage'said guide. i v I 2. In apparatus for feeding materials, the combination of a pair of shovel-like. feeding members operating "together, a guide, means connected with said members to engage said guide and mechanism rotating about a vertical axis to operate each of said members back and forth and to swing them laterally, so that said members always face the materials, said members being movable simultaneously toward and away from each other by said mechanism,-

3. In a device for feeding materials, the combination 7 of a shovel-like member arranged to swing in and out abouta vertical axis, mechanism for operating said member, and means whereby said vertical axis is allowed to shift back and forth in a straight line during theoperation of said member.

4. In a device for feeding materials, the combination of ashovel-like member arranged toswing in and out about a vertical axis, mechanism for operating said member, and means whereby said vertical axis is allowed to shift back and forth in. a straight line during the operation of said'member, in combination with instrumentalities whereby said deviceisportable and can be moved forward into a mass or heap: of said materials' v 5. In combination with an elevator for conveying materialsupwardly, a pair of shovel-like members operating together for pushing the materials to the lower endflof said elevator, mechanism for operating each of said members back and forth andlaterally, and means for controlling said :members, so that said'members always face the materials, in combination :withinstrumentalities whereby said elevator and said members are portable and may be pushed forward into amass or heap of said materials. a V J V 6. In a device for feedingmateria-ls, the combination of a shovel-like member. arranged to swing in andout about'a vertical axis, mechanism for operating said member,

a flange depending from said arm to engage the materials.

7. In combination with an elevator for conveying materials upwardly, a pair of shovel-like members operating together for pushing the materials to the lower end of said elevator, mechanism for operating each of said menfloers back and forth and laterally, and means for controlling said members, so that said members always face the materials, said controlling means comprising arms rigid with said members, in combination withflanges depending from said arms to engage the materials.

JOSEPH 0. DEV ICK.. 

